Nut-lock.



L. A. LINES. NUT LOCK.

APPLICATION FILED JUNE 27 1914- 1,142,899. Patented June 15, 1915.

LEWIS A. LINES, OF PERRY, NEW YORK.

NUT-LOCK.

Specification of LettersPatent.

Application filed June 27, 1914. Serial No. 847,711.

To all whom it may concern Be it known that I, LEWIS A. LINES, a citizenof the United States, residing at Perry, in the county of Wyoming andState of New York, have invented certain new and useful Improvements inNut-Locks, of which the following is a specification, reference beinghad to the accompanying drawlngs.

This invention relates to new and useful improvements in nut-locks, andan object of this invention is the provision of a simple and inexpensivenut-lock which will be efficient and durable in use to securely look anut upon a bolt against relative turning.

Another object of this invention is the provision of a nut-lock whichwill be applicable to nuts of various sizes, to lock th same upon bolts.

A still further object of this invention is the provision of a nut-lockwhich comprises a locking plate having an angular opening therein forengagement with an angular reduced extension upon a bolt, the platehaving inwardly extending locking arms at its ends to engage theopposite side faces of the nut mounted upon the bolt, the ends of thelocking arms being provided with inwardly and rearwardly directedflanges for engagement in recesses in the sides of the nut, whereby thenut is prevented from turning on the bolt.

With these and other objects in view, my invention consists in the novelconstruction, combination, and arrangement of parts, to be hereinaftermore fully described, claimed, and illustrated in the accompanyingdrawing, in which Figure 1 is a top plan view of my improved deviceshowing the same applied to use; Fig. 2 is a sectional View on the line22 of Fig. 1; Fig. 3 is an end view of the device; and Fig. 4 is anelevational view of the locking plate.

Referring more particularly to the drawing, the numeral 1 designates athreaded bolt which is provided with a reduced angular extension 2 onits outer end to extend through the opening 3 in the spring metallocking plate 4:. An angular nut 5 is screwed on the threaded portion ofthe bolt 1, the nut being provided in its side faces with an obliquelyextending groove 6, the groove 6 opening on the faces of the nut andextending inwardly and rearwardly within the same. Formed on theopposite ends of the locking plate 4 are laterally extending arms 7, thearms being adapted to engage against opposite sides of the nut. andbeing provided at their extremities with inwardly and rearwardlyprojecting flanges 8, tfor engagement in the grooves 6 in the nu In thepractical use of my improved device, the bolt is disposed through theobjects to be secured together, and the nut is Patented June 15; 1915.

screwed on-the threaded end of the bolt flush against the outermostobject, whereupon the spring locking plate is disposed so that thereduced extension 2 of the bolt projects through the angular opening 3of the locking plate, with the arms 7 spread and engaged against theopposite sides of the nut. The plate 4 is moved inwardly until theflanges 8 of the arms spring into the recess 6 of the nut, whereupon theplate is secured in looking position on the bolt and nut to preventrelative turning of the same.

From the above description taken in connection with the accompanyingdrawing, it

is applicable to nuts of various thicknesses, and that the plate may beoperatively engaged with the nut and bolt, when the bolt is disposedthrough objects of varying thicknesses. It will be seen that as thelocking plate is moved inwardly so that the reduced extension 2 of thebolt will project through the opening 3 in the plate, the flanges 8 onthe ends of the arms 7 will engage against the forward edge of the nutto spread the arms, so that the same will automatically spring inwardlyto move the flanges into the groove and automatically lock the plate 4-to the nut andbolt, and

locking plate from the nut and bolt.

Having thus fully described my invention, what I desire to LettersPatent is In combination with a bolt having a reduced angular extensionat its outer end, and a nut having an inwardly and rearwardly extendinggroove formed in its outer opposite faces of the nut, the extremities ofclaimand secure by .80 will be seen that my improved locking plateprevent accidental disengagement of the said arms having inwardly andrearwardly extending acutely angled flanges formed thereon forengagement in the groove in the nut, and said arms being of a greaterlength than the thickness of the nut, where by the arms may be forcedforwardly of the nut to thereby cause the inner face of the groove toeXert an outward Wedging action on said angled flanges whereby to removethe flanges from engagement With said is groove.

In testimony whereof I hereunto affix my signature in the presence oftwo Witnesses.

LEWIS A. LINES.

Witnesses:

RUTH NICHOLS, KATE PIDGEON.

Copies of this patent may be'obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

